What Causes Light Spotting Before a Period?


Quick Answer

There are multiple reproductive system and medical causes of light spotting before a period, according to Mayo Clinic. Such causes include pregnancy, hyperthyroidism and using an intrauterine device.

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Full Answer

Other causes of light spotting before a period include:

  • Cervical cancer and cervical polyps
  • Chlamydia, gonorrhea and cervical infections
  • Endometrial cancer, hyperplasia or polyps
  • Endometriosis
  • Changes in hormone levels
  • Ovarian cancer or cysts
  • Menorrhagia
  • Ovulation
  • Systemic diseases, including liver and kidney disease
  • Sexual intercourse and vaginal trauma
  • Vaginal atrophy or vaginal cancer
  • Von Willebrand disease

Women who regularly experience abnormal vaginal bleeding should speak to a doctor. This is especially the case when pregnant, perimenopausal for more than 12 months, post-menopausal or under the age of eight.

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